JPS6138976B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an integrated air conditioner, and provides an integrated air conditioner that can achieve low noise and high efficiency, which were hitherto unattainable.

Conventionally, this type of integrated air conditioner has been constructed as shown in FIGS. 1 and 2. That is,
In the figure, an integrated air conditioner a has a board b,
An indoor ventilation system path c and an outdoor ventilation system path d are placed on the board b.
The main body is composed of a partition wall e that separates the partition wall e and an outer box f, etc.; A motor i is attached to the motor i, and a ring p is attached to one end of the motor i for blowing air toward the outdoor heat exchanger h and scraping up water in the board b and blowing it toward the outdoor heat exchanger h. An axial flow fan j, a compressor k, etc., are installed, and an indoor heat exchanger m installed facing the front l, an indoor heat exchanger m installed facing the front l, and an indoor heat exchanger m installed on the other end of the motor A multi-blade fan o or the like was provided to blow the wind passing through the inner heat exchanger m into the wind tunnel n.

Here, the configuration of an ideal ventilation system path for this type of integrated air conditioner will be explained. Needless to say, the lower the resistance of the ventilation system path, the better, but to achieve this, the area through which the air passes through the heat exchanger (hereinafter referred to as the front area), which is the element that makes up the resistance, must be wide and the depth through which the air can pass. (hereinafter referred to as the number of rows) is short, and the ventilation system path is wide and smooth with few bends. Only when these conditions are met will a ventilation system path with low ventilation resistance be constructed, making it possible to realize an integrated air conditioner that can blow a large volume of air with low noise using a small-capacity motor.

However, conventionally, this type of integrated air conditioner is installed through a wall or installed in a window, so the area in front of the unit is limited by the amount of light from the window, etc., so as to avoid making large holes in the wall. It was made as small as possible to avoid significant damage.

In addition, conventionally, this type of air conditioner was first designed to reduce costs by making it smaller.
As shown in Figs. 2 and 2, since the focus is on simultaneously driving the multi-blade fan o on the indoor side and the axial flow fan j on the outdoor side with one motor i, the front side of the integrated air conditioner a The indoor heat exchanger m and the outdoor heat exchanger h have to be arranged along the rear surface g and the indoor side heat exchanger m and the outdoor heat exchanger h, respectively. Ventilation system routes c and d were narrow and curved.

Therefore, in the end, a fairly large capacity motor i is required for ventilation, and the front area of each heat exchanger m and h has to be reduced, so the number of stages of each heat exchanger m and h is increased. It became necessary to increase the depth dimension, which increased the cost of both the motor i and the heat exchangers m and h. This results in the opposite of the original purpose of using one fan motor i to make it cheaper, and it cannot be said to be good as a ventilation structure.

That is, as mentioned above, priority is given to installing two fans o and j at both ends of one motor i inside a limited box, so multi-blade fans o and
The shapes of the suction side and the outlet side of axial flow fan j were not such that these fans o and j could be operated with low noise. Furthermore, since the ring p faces almost perpendicularly to the horizontal plane within the substrate b, its ability to scrape up water is small, and at the same time, the efficiency of scraping water is also poor, and it does not contribute much to improving the performance of the heat exchanger. Nakatsuta. Furthermore, large water droplets fly off when the water is stirred up, causing problems such as the generation of loud noise.

As mentioned above, the conventional structure inevitably generates a lot of noise, requires a large capacity motor,
There were problems such as inability to efficiently treat condensed water from the indoor heat exchanger.

The present invention eliminates the drawbacks found in the above-mentioned conventional integrated air conditioners.

Hereinafter, the present invention will be described with reference to FIGS. 3 to 5 of the accompanying drawings showing one embodiment thereof.

In the figure, 1 is the main body of the integrated air conditioner, which includes a board 2, a partition wall 3 provided on the board 2 and separating an indoor ventilation system path A and an outdoor ventilation system path B, and an outer box 4. It is composed of etc. The indoor ventilation system path A includes an indoor heat exchanger 6 mounted facing the front surface 5, and a cross-flow fan 7 whose rotating shaft is positioned parallel to the indoor heat exchanger 6.
an indoor fan motor 8 that drives the crossflow fan 7;
A wind tunnel section 10 having a gently curved surface shape is provided for guiding the wind blown out from the cross-flow fan 7 to the outside from the outlet 9 of the main body 1 of the integrated air conditioner. Further, in the outdoor ventilation system path B, there is a substantially L-shaped outdoor heat exchanger 13 disposed along the left side surface 11 to the back surface 12 of the outer box 4, and a rotation axis thereof is perpendicular to the substrate 2. An outdoor fan motor 15 drives an axial fan 14 positioned as shown in FIG.
and an axial flow fan 14 provided on the top surface 16 of the outer box 4.
an air outlet 17 that sends out the wind blown out by the
A compressor 18 and the like are provided, and a rotating body 20 of an appropriate shape is provided at the lower end of the shaft 19 of the outdoor fan motor 15 to scatter water accumulated in the substrate 2.

In the above configuration, in the indoor ventilation system path A, by employing the cross-flow fan 7, the indoor heat exchanger 6 can be made as long as possible in the left-right direction along the front surface 5 of the outer box 4, and also in the height direction. Can be made high. This has a structure in which the front surface area of the indoor heat exchanger 6 is widened and the number of rows is shortened to reduce the ventilation resistance of the indoor heat exchanger 6. Furthermore, wind tunnel part 1
0 is provided with a cross-flow fan 7 so that its rotation axis is parallel to the indoor heat exchanger 6, so that the air blown from the cross-flow fan 7 is directed to the outside of the main body 1 of the integrated air conditioner with as little resistance as possible. It becomes a smooth shape that leads to.

Therefore, as shown by the arrow X in the figure, the air sucked in from the front surface 5 of the main body 1 of the integrated air conditioner passes through the indoor heat exchanger 6 with low resistance, then crosses the cross-flow fan 7 and curves smoothly. The air passes through the wind tunnel section 10 and is blown out from the air outlet 9 at the top of the main body 1 of the integrated air conditioner.

In this way, the resistance of the entire indoor ventilation system path A becomes extremely small, and as a result, a large amount of air can be ventilated with low noise, and the input to the indoor fan motor 8 can also be small. Therefore, the indoor heat exchanger 6 and the indoor fan motor 8 can be made smaller and cheaper.

Furthermore, as mentioned above, the indoor ventilation system path A can have a reduced depth from the front 5 by adopting the indoor heat exchanger 6 and the cross-flow fan 7, which have a short number of rows. The depth dimension can be considerably wider than before. That is, this allows the outdoor heat exchanger 13 to be installed facing the left side surface 11 and back surface 12 of the outer box 4 in the outdoor ventilation system path B, increasing the ventilation area and increasing the ventilation area of the outdoor heat exchanger 13. This is something that can be used to improve one's abilities. Moreover, the cost and resistance of the outdoor heat exchanger 13 can be reduced. Furthermore, since the area of the outdoor ventilation system path B is large, it is possible to use a large diameter axial flow fan 14, and the intake air from the left side 11 and the back 12 is blown out to the air outlet 17 on the top surface 16. The wind flow in system B also becomes relatively linear, resulting in low resistance. As a result, a large amount of air can be blown with low noise, and as in the case of the indoor ventilation system path A, the input to the outdoor fan motor 15 can be small, and the outdoor heat exchanger 13 and the outdoor fan motor 15
can be made smaller and cheaper. In addition, since the rotating body 20 attached to the lower end of the shaft 19 of the outdoor fan motor 15 has a wide contact surface with condensed water, the shaft 19
By rotating 9, a large amount of condensed water can be uniformly scattered in all directions in the form of fine droplets. Therefore, this fine condensed water scatters onto the outdoor heat exchanger 13 on average and hits the outdoor heat exchanger 13 in a high temperature state, so that the efficiency of the outdoor heat exchanger 13 is improved at the same time as the condensed water is efficiently evaporated and dissipated. This makes it possible to scatter evaporated water with relatively low noise.

As mentioned above, the integrated air conditioner according to the present invention has the following features:
A cross-flow fan is used in the indoor ventilation system passage, an axial fan is provided in the outdoor ventilation system passage so that the axis of rotation is perpendicular to the board, and at least two of the outer peripheral surfaces of the outdoor ventilation system passage are installed. Since the outdoor heat exchanger is arranged along the outer circumferential surface, the resistance of the indoor ventilation system path can be extremely small, the depth dimension can be reduced, and a large amount of ventilation can be performed with low noise. As the indoor ventilation system path is made thinner, the outdoor ventilation system path can be made wider, which results in a wider area of the heat exchanger, less ventilation resistance, and a reduction in large amounts of wind. Can be ventilated with noise. In addition, each fan can use a small motor with low input power, and as the ventilation volume increases, the heat exchanger can be made smaller, making it cheaper to manufacture, and a rotating body can be attached to the lower end of the shaft of the outdoor fan motor. Since the condensed water can be efficiently dispersed, the condensed water can be efficiently evaporated and dissipated without generating large noise, and it has excellent effects such as improving the efficiency of the outdoor heat exchanger.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a plan sectional view and a side sectional view, respectively, of an integrated air conditioner showing a conventional example;
3 and 4 are a plan sectional view and a side sectional view, respectively, of an integrated air conditioner according to an embodiment of the present invention, and FIG. 5 is an enlarged sectional view of a main part of FIG. 4. 1... Main body, 2... Substrate, 3... Partition wall, 4...
Outer box, 5...Front, 6...Indoor heat exchanger, 7...
...Crossflow fan, 8...Indoor fan motor, 9...
Air outlet, 10...Wind tunnel section, 11...Left side,
12... Back, 13... Outdoor heat exchanger, 14...
...Axial fan, 15...Outdoor fan motor, 16
... Top plate, 17 ... Air outlet, 18 ... Compressor, 19 ... Shaft, 20 ... Rotating body, A ... Indoor ventilation system path, B ... Outdoor ventilation system path.

Claims (1)

[Claims] 1 A partition is provided in one box body to form an indoor side and an outdoor side, and a compressor, indoor heat exchanger, indoor fan, outdoor heat exchanger, outdoor fan, etc. are housed,
The indoor blower is a cross-flow fan, and the outdoor blower is an axial fan, and the axial fan is mounted so that its axis of rotation is substantially perpendicular to the substrate forming the bottom surface of the box, and the An outdoor heat exchanger is installed along at least two walls on the outdoor side of the box body, air intake openings are provided in the walls, and the transverse flow fan and the axial flow fan are each independently driven. An indoor fan motor and an outdoor fan motor are provided, and the axial flow fan is provided at the upper end of the shaft of the outdoor fan motor, and rotation for scattering water accumulated in the substrate at the lower end of the shaft of the outdoor fan motor. An integrated air conditioner with a body.